To Approach the Factors of Influencing Consumer Preferences for Corrective Eyewear Design

Abstract

Correctional eyeglasses used for myopia, hyperopia, astigmatism, and presbyopia require adaptation and prolonged wearing, similar to assistive devices. Unlike decorative glasses, which can be freely changed or not worn as desired and coordinated with overall attire, wearing eyeglasses alters facial appearance. The aesthetics, comfort, and functional quality of eyeglasses directly affect the wearer's willingness, thus impacting visual health and quality of life. Therefore, corrective eyeglass frames need to balance between aesthetic appearance and visual health. This study employs methods such as the Kano Model, Important Performance Analysis (IPA), and Choquet integral to explore the key preference factors for the design of corrective eyeglass frames. Differing from traditional 5-point equidistant semantic questionnaires, this study employs a non-equal interval semantic questionnaire with a golden ratio scale to differentiate adjacent semantic importance ratios, highlighting weighted emphasis on aesthetics. The results provide reference for eyeglass designers and related industries. It is expected to design eyewear that better meets the needs of the Taiwanese population, encouraging people to wear corrective eyewear willingly, thereby further maintaining visual health, improving quality of life, enhancing visual health, and quality of life.